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Phytoclimate of winter rye stands

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The present study describes the microclimate within a winter rye () stand compared to that above a bare soil at the same height. It is focused on air temperature and humidity. The study is based on long-term measurements (1981–1999) at 0.2 m above ground in the agrometeorological field experiment at Berlin-Dahlem (Humboldt-University of Berlin). The microclimate within a winter rye stand differs significantly from that above a bare soil. Temperature and actual vapour pressure differences between both locations depend on the developmental stage of the plants as well as the time of the day. Their influence is so strong that a detailed analysis of the microclimate makes it necessary to break down the growing time of crop into several developmental periods. So, it was possible to describe and explain the characteristics of the phytoclimate in a relatively detailed and comprehensive manner. Thereby the assessment of potential damages caused by pests and diseases within crop stands becomes more precise.

Die vorliegende Studie vergleicht das Mikroklima eines Winterroggen-(Secale sereale) Bestandes mit einer vegetationsfreien Fläche. Betrachtet werden Lufttemperatur und Luftfeuchte in 0,2 m Höhe. Als Grundlage dienen langjährige Messungen (1981–1999) auf dem Agrarmeteorologischen Versuchsfeld in Berlin-Dahlem (Humboldt-Universität zu Berlin). Das Mikroklima innerhalb des Winterroggen-Bestandes unterscheidet sich signifikant von dem eines unbewachsenen Bodens. Die Temperatur-und Dampfdruckdifferenzen zwischen beiden Standorten sind sowohl vom Entwicklungsstadium der Pflanzen als auch von der Tageszeit abhängig. Deren Einfluss ist so stark, dass für eine genaue Analyse des Bestandesklimas die Vegetationszeit in mehrere Entwicklungsphasen unterteilt werden musste. Im Ergebnis entstand eine relativ detaillierte und umfassende Beschreibung der Charakteristika des Mikroklimas, die eine präzisere Bewertung des Schadpotentials von Schadorganismen und Krankheiten ermöglicht.
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Document Type: Research Article

Publication date: 2005-04-01

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  • Meteorologische Zeitschrift (originally founded in 1866) is the joint periodical of the meteorological societies of Austria, Germany and Switzerland. It accepts high-quality peer-reviewed manuscripts on all aspects of observational, theoretical and computational research out of the entire field of meteorology, including climatology. Meteorologische Zeitschrift represents a natural forum for the meteorological community of Central Europe and worldwide.
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